dlls/gdi32/driver.c

   1 /*
   2  * Graphics driver management functions
   3  *
   4  * Copyright 1994 Bob Amstadt
   5  * Copyright 1996, 2001 Alexandre Julliard
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <assert.h>
  26 #include <stdarg.h>
  27 #include <string.h>
  28 #include <stdio.h>
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winreg.h"
  32 #include "ddrawgdi.h"
  33 #include "wine/winbase16.h"
  34
  35 #include "gdi_private.h"
  36 #include "wine/unicode.h"
  37 #include "wine/list.h"
  38 #include "wine/debug.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(driver);
  41
  42 struct graphics_driver
  43 {
  44     struct list                entry;
  45     HMODULE                    module;  /* module handle */
  46     const struct gdi_dc_funcs *funcs;
  47 };
  48
  49 static struct list drivers = LIST_INIT( drivers );
  50 static struct graphics_driver *display_driver;
  51 static DWORD display_driver_load_error;
  52
  53 const struct gdi_dc_funcs *font_driver = NULL;
  54
  55 static CRITICAL_SECTION driver_section;
  56 static CRITICAL_SECTION_DEBUG critsect_debug =
  57 {
  58     0, 0, &driver_section,
  59     { &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
  60       0, 0, { (DWORD_PTR)(__FILE__ ": driver_section") }
  61 };
  62 static CRITICAL_SECTION driver_section = { &critsect_debug, -1, 0, 0, 0, 0 };
  63
  64 /**********************************************************************
  65  *           create_driver
  66  *
  67  * Allocate and fill the driver structure for a given module.
  68  */
  69 static struct graphics_driver *create_driver( HMODULE module )
  70 {
  71     static const struct gdi_dc_funcs empty_funcs;
  72     const struct gdi_dc_funcs *funcs = NULL;
  73     struct graphics_driver *driver;
  74
  75     if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
  76     driver->module = module;
  77
  78     if (module)
  79     {
  80         const struct gdi_dc_funcs * (CDECL *wine_get_gdi_driver)( unsigned int version );
  81
  82         if ((wine_get_gdi_driver = (void *)GetProcAddress( module, "wine_get_gdi_driver" )))
  83             funcs = wine_get_gdi_driver( WINE_GDI_DRIVER_VERSION );
  84     }
  85     if (!funcs) funcs = &empty_funcs;
  86     driver->funcs = funcs;
  87     return driver;
  88 }
  89
  90
  91 /**********************************************************************
  92  *           get_display_driver
  93  *
  94  * Special case for loading the display driver: get the name from the config file
  95  */
  96 static const struct gdi_dc_funcs *get_display_driver( HMODULE *module_ret )
  97 {
  98     struct graphics_driver *driver;
  99     char buffer[MAX_PATH], libname[32], *name, *next;
 100     HMODULE module = 0;
 101     HKEY hkey;
 102
 103     if (display_driver)
 104     {
 105         *module_ret = display_driver->module;
 106         return display_driver->funcs;  /* already loaded */
 107     }
 108
 109     strcpy( buffer, "x11" );  /* default value */
 110     /* @@ Wine registry key: HKCU\Software\Wine\Drivers */
 111     if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\Drivers", &hkey ))
 112     {
 113         DWORD type, count = sizeof(buffer);
 114         RegQueryValueExA( hkey, "Graphics", 0, &type, (LPBYTE) buffer, &count );
 115         RegCloseKey( hkey );
 116     }
 117
 118     name = buffer;
 119     while (name)
 120     {
 121         next = strchr( name, ',' );
 122         if (next) *next++ = 0;
 123
 124         snprintf( libname, sizeof(libname), "wine%s.drv", name );
 125         if ((module = LoadLibraryA( libname )) != 0) break;
 126         name = next;
 127     }
 128
 129     if (!module) display_driver_load_error = GetLastError();
 130
 131     if (!(driver = create_driver( module )))
 132     {
 133         MESSAGE( "Could not create graphics driver '%s'\n", buffer );
 134         FreeLibrary( module );
 135         ExitProcess(1);
 136     }
 137     if (InterlockedCompareExchangePointer( (void **)&display_driver, driver, NULL ))
 138     {
 139         /* somebody beat us to it */
 140         FreeLibrary( driver->module );
 141         HeapFree( GetProcessHeap(), 0, driver );
 142     }
 143     return display_driver->funcs;
 144 }
 145
 146
 147 /**********************************************************************
 148  *           DRIVER_load_driver
 149  */
 150 const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name, HMODULE *module_ret )
 151 {
 152     HMODULE module;
 153     struct graphics_driver *driver, *new_driver;
 154     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 155     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 156
 157     /* display driver is a special case */
 158     if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W ))
 159         return get_display_driver( module_ret );
 160
 161     if ((module = GetModuleHandleW( name )))
 162     {
 163         if (display_driver && display_driver->module == module)
 164         {
 165             *module_ret = module;
 166             return display_driver->funcs;
 167         }
 168         EnterCriticalSection( &driver_section );
 169         LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 170         {
 171             if (driver->module == module) goto done;
 172         }
 173         LeaveCriticalSection( &driver_section );
 174     }
 175
 176     if (!(module = LoadLibraryW( name ))) return NULL;
 177
 178     if (!(new_driver = create_driver( module )))
 179     {
 180         FreeLibrary( module );
 181         return NULL;
 182     }
 183
 184     /* check if someone else added it in the meantime */
 185     EnterCriticalSection( &driver_section );
 186     LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
 187     {
 188         if (driver->module != module) continue;
 189         FreeLibrary( module );
 190         HeapFree( GetProcessHeap(), 0, new_driver );
 191         goto done;
 192     }
 193     driver = new_driver;
 194     list_add_head( &drivers, &driver->entry );
 195     TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
 196 done:
 197     *module_ret = driver->module;
 198     LeaveCriticalSection( &driver_section );
 199     return driver->funcs;
 200 }
 201
 202
 203 /***********************************************************************
 204  *           __wine_get_driver_module    (GDI32.@)
 205  */
 206 HMODULE CDECL __wine_get_driver_module( HDC hdc )
 207 {
 208     DC *dc;
 209     HMODULE ret = 0;
 210
 211     if ((dc = get_dc_ptr( hdc )))
 212     {
 213         ret = dc->module;
 214         release_dc_ptr( dc );
 215         if (!ret) SetLastError( display_driver_load_error );
 216     }
 217     else SetLastError( ERROR_INVALID_HANDLE );
 218     return ret;
 219 }
 220
 221
 222 static INT nulldrv_AbortDoc( PHYSDEV dev )
 223 {
 224     return 0;
 225 }
 226
 227 static BOOL nulldrv_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 228                          INT xstart, INT ystart, INT xend, INT yend )
 229 {
 230     return TRUE;
 231 }
 232
 233 static BOOL nulldrv_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 234                            INT xstart, INT ystart, INT xend, INT yend )
 235 {
 236     return TRUE;
 237 }
 238
 239 static BOOL nulldrv_CreateCompatibleDC( PHYSDEV orig, PHYSDEV *pdev )
 240 {
 241     if (!display_driver || !display_driver->funcs->pCreateCompatibleDC) return TRUE;
 242     return display_driver->funcs->pCreateCompatibleDC( NULL, pdev );
 243 }
 244
 245 static BOOL nulldrv_CreateDC( PHYSDEV *dev, LPCWSTR driver, LPCWSTR device,
 246                               LPCWSTR output, const DEVMODEW *devmode )
 247 {
 248     assert(0);  /* should never be called */
 249     return FALSE;
 250 }
 251
 252 static BOOL nulldrv_DeleteDC( PHYSDEV dev )
 253 {
 254     assert(0);  /* should never be called */
 255     return TRUE;
 256 }
 257
 258 static BOOL nulldrv_DeleteObject( PHYSDEV dev, HGDIOBJ obj )
 259 {
 260     return TRUE;
 261 }
 262
 263 static DWORD nulldrv_DeviceCapabilities( LPSTR buffer, LPCSTR device, LPCSTR port,
 264                                          WORD cap, LPSTR output, DEVMODEA *devmode )
 265 {
 266     return -1;
 267 }
 268
 269 static BOOL nulldrv_Ellipse( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 270 {
 271     return TRUE;
 272 }
 273
 274 static INT nulldrv_EndDoc( PHYSDEV dev )
 275 {
 276     return 0;
 277 }
 278
 279 static INT nulldrv_EndPage( PHYSDEV dev )
 280 {
 281     return 0;
 282 }
 283
 284 static BOOL nulldrv_EnumFonts( PHYSDEV dev, LOGFONTW *logfont, FONTENUMPROCW proc, LPARAM lParam )
 285 {
 286     return TRUE;
 287 }
 288
 289 static INT nulldrv_EnumICMProfiles( PHYSDEV dev, ICMENUMPROCW func, LPARAM lparam )
 290 {
 291     return -1;
 292 }
 293
 294 static INT nulldrv_ExtDeviceMode( LPSTR buffer, HWND hwnd, DEVMODEA *output, LPSTR device,
 295                                   LPSTR port, DEVMODEA *input, LPSTR profile, DWORD mode )
 296 {
 297     return -1;
 298 }
 299
 300 static INT nulldrv_ExtEscape( PHYSDEV dev, INT escape, INT in_size, const void *in_data,
 301                                     INT out_size, void *out_data )
 302 {
 303     return 0;
 304 }
 305
 306 static BOOL nulldrv_ExtFloodFill( PHYSDEV dev, INT x, INT y, COLORREF color, UINT type )
 307 {
 308     return TRUE;
 309 }
 310
 311 static BOOL nulldrv_FontIsLinked( PHYSDEV dev )
 312 {
 313     return FALSE;
 314 }
 315
 316 static BOOL nulldrv_GdiComment( PHYSDEV dev, UINT size, const BYTE *data )
 317 {
 318     return FALSE;
 319 }
 320
 321 static BOOL nulldrv_GdiRealizationInfo( PHYSDEV dev, void *info )
 322 {
 323     return FALSE;
 324 }
 325
 326 static UINT nulldrv_GetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
 327 {
 328     return DCB_RESET;
 329 }
 330
 331 static BOOL nulldrv_GetCharABCWidths( PHYSDEV dev, UINT first, UINT last, LPABC abc )
 332 {
 333     return FALSE;
 334 }
 335
 336 static BOOL nulldrv_GetCharABCWidthsI( PHYSDEV dev, UINT first, UINT count, WORD *indices, LPABC abc )
 337 {
 338     return FALSE;
 339 }
 340
 341 static BOOL nulldrv_GetCharWidth( PHYSDEV dev, UINT first, UINT last, INT *buffer )
 342 {
 343     return FALSE;
 344 }
 345
 346 static INT nulldrv_GetDeviceCaps( PHYSDEV dev, INT cap )
 347 {
 348     switch (cap)  /* return meaningful values for some entries */
 349     {
 350     case HORZRES:     return 640;
 351     case VERTRES:     return 480;
 352     case BITSPIXEL:   return 1;
 353     case PLANES:      return 1;
 354     case NUMCOLORS:   return 2;
 355     case ASPECTX:     return 36;
 356     case ASPECTY:     return 36;
 357     case ASPECTXY:    return 51;
 358     case LOGPIXELSX:  return 72;
 359     case LOGPIXELSY:  return 72;
 360     case SIZEPALETTE: return 2;
 361     case TEXTCAPS:    return (TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
 362                               TC_CR_ANY | TC_SF_X_YINDEP | TC_SA_DOUBLE | TC_SA_INTEGER |
 363                               TC_SA_CONTIN | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE | TC_VA_ABLE);
 364     default:          return 0;
 365     }
 366 }
 367
 368 static BOOL nulldrv_GetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 369 {
 370     SetLastError( ERROR_INVALID_PARAMETER );
 371     return FALSE;
 372 }
 373
 374 static DWORD nulldrv_GetFontData( PHYSDEV dev, DWORD table, DWORD offset, LPVOID buffer, DWORD length )
 375 {
 376     return FALSE;
 377 }
 378
 379 static DWORD nulldrv_GetFontUnicodeRanges( PHYSDEV dev, LPGLYPHSET glyphs )
 380 {
 381     return 0;
 382 }
 383
 384 static DWORD nulldrv_GetGlyphIndices( PHYSDEV dev, LPCWSTR str, INT count, LPWORD indices, DWORD flags )
 385 {
 386     return GDI_ERROR;
 387 }
 388
 389 static DWORD nulldrv_GetGlyphOutline( PHYSDEV dev, UINT ch, UINT format, LPGLYPHMETRICS metrics,
 390                                       DWORD size, LPVOID buffer, const MAT2 *mat )
 391 {
 392     return GDI_ERROR;
 393 }
 394
 395 static BOOL nulldrv_GetICMProfile( PHYSDEV dev, LPDWORD size, LPWSTR filename )
 396 {
 397     return FALSE;
 398 }
 399
 400 static DWORD nulldrv_GetImage( PHYSDEV dev, BITMAPINFO *info, struct gdi_image_bits *bits,
 401                                struct bitblt_coords *src )
 402 {
 403     return ERROR_NOT_SUPPORTED;
 404 }
 405
 406 static DWORD nulldrv_GetKerningPairs( PHYSDEV dev, DWORD count, LPKERNINGPAIR pairs )
 407 {
 408     return 0;
 409 }
 410
 411 static UINT nulldrv_GetOutlineTextMetrics( PHYSDEV dev, UINT size, LPOUTLINETEXTMETRICW otm )
 412 {
 413     return 0;
 414 }
 415
 416 static UINT nulldrv_GetSystemPaletteEntries( PHYSDEV dev, UINT start, UINT count, PALETTEENTRY *entries )
 417 {
 418     return 0;
 419 }
 420
 421 static UINT nulldrv_GetTextCharsetInfo( PHYSDEV dev, LPFONTSIGNATURE fs, DWORD flags )
 422 {
 423     return DEFAULT_CHARSET;
 424 }
 425
 426 static BOOL nulldrv_GetTextExtentExPoint( PHYSDEV dev, LPCWSTR str, INT count, INT max_ext,
 427                                           INT *fit, INT *dx, SIZE *size )
 428 {
 429     return FALSE;
 430 }
 431
 432 static BOOL nulldrv_GetTextExtentExPointI( PHYSDEV dev, const WORD *indices, INT count, INT max_ext,
 433                                            INT *fit, INT *dx, SIZE *size )
 434 {
 435     return FALSE;
 436 }
 437
 438 static INT nulldrv_GetTextFace( PHYSDEV dev, INT size, LPWSTR name )
 439 {
 440     INT ret = 0;
 441     LOGFONTW font;
 442     HFONT hfont = GetCurrentObject( dev->hdc, OBJ_FONT );
 443
 444     if (GetObjectW( hfont, sizeof(font), &font ))
 445     {
 446         ret = strlenW( font.lfFaceName ) + 1;
 447         if (name)
 448         {
 449             lstrcpynW( name, font.lfFaceName, size );
 450             ret = min( size, ret );
 451         }
 452     }
 453     return ret;
 454 }
 455
 456 static BOOL nulldrv_GetTextMetrics( PHYSDEV dev, TEXTMETRICW *metrics )
 457 {
 458     return FALSE;
 459 }
 460
 461 static BOOL nulldrv_LineTo( PHYSDEV dev, INT x, INT y )
 462 {
 463     return TRUE;
 464 }
 465
 466 static BOOL nulldrv_MoveTo( PHYSDEV dev, INT x, INT y )
 467 {
 468     return TRUE;
 469 }
 470
 471 static BOOL nulldrv_PaintRgn( PHYSDEV dev, HRGN rgn )
 472 {
 473     return TRUE;
 474 }
 475
 476 static BOOL nulldrv_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
 477 {
 478     return TRUE;
 479 }
 480
 481 static BOOL nulldrv_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 482                          INT xstart, INT ystart, INT xend, INT yend )
 483 {
 484     return TRUE;
 485 }
 486
 487 static BOOL nulldrv_PolyPolygon( PHYSDEV dev, const POINT *points, const INT *counts, UINT polygons )
 488 {
 489     return TRUE;
 490 }
 491
 492 static BOOL nulldrv_PolyPolyline( PHYSDEV dev, const POINT *points, const DWORD *counts, DWORD lines )
 493 {
 494     return TRUE;
 495 }
 496
 497 static BOOL nulldrv_Polygon( PHYSDEV dev, const POINT *points, INT count )
 498 {
 499     INT counts[1] = { count };
 500
 501     return PolyPolygon( dev->hdc, points, counts, 1 );
 502 }
 503
 504 static BOOL nulldrv_Polyline( PHYSDEV dev, const POINT *points, INT count )
 505 {
 506     DWORD counts[1] = { count };
 507
 508     if (count < 0) return FALSE;
 509     return PolyPolyline( dev->hdc, points, counts, 1 );
 510 }
 511
 512 static DWORD nulldrv_PutImage( PHYSDEV dev, HRGN clip, BITMAPINFO *info,
 513                                const struct gdi_image_bits *bits, struct bitblt_coords *src,
 514                                struct bitblt_coords *dst, DWORD rop )
 515 {
 516     return ERROR_SUCCESS;
 517 }
 518
 519 static UINT nulldrv_RealizeDefaultPalette( PHYSDEV dev )
 520 {
 521     return 0;
 522 }
 523
 524 static UINT nulldrv_RealizePalette( PHYSDEV dev, HPALETTE palette, BOOL primary )
 525 {
 526     return 0;
 527 }
 528
 529 static BOOL nulldrv_Rectangle( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
 530 {
 531     return TRUE;
 532 }
 533
 534 static HDC nulldrv_ResetDC( PHYSDEV dev, const DEVMODEW *devmode )
 535 {
 536     return 0;
 537 }
 538
 539 static BOOL nulldrv_RoundRect( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
 540                                INT ell_width, INT ell_height )
 541 {
 542     return TRUE;
 543 }
 544
 545 static HBITMAP nulldrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
 546 {
 547     return bitmap;
 548 }
 549
 550 static HBRUSH nulldrv_SelectBrush( PHYSDEV dev, HBRUSH brush, const struct brush_pattern *pattern )
 551 {
 552     return brush;
 553 }
 554
 555 static HPALETTE nulldrv_SelectPalette( PHYSDEV dev, HPALETTE palette, BOOL bkgnd )
 556 {
 557     return palette;
 558 }
 559
 560 static HPEN nulldrv_SelectPen( PHYSDEV dev, HPEN pen, const struct brush_pattern *pattern )
 561 {
 562     return pen;
 563 }
 564
 565 static INT nulldrv_SetArcDirection( PHYSDEV dev, INT dir )
 566 {
 567     return dir;
 568 }
 569
 570 static COLORREF nulldrv_SetBkColor( PHYSDEV dev, COLORREF color )
 571 {
 572     return color;
 573 }
 574
 575 static INT nulldrv_SetBkMode( PHYSDEV dev, INT mode )
 576 {
 577     return mode;
 578 }
 579
 580 static UINT nulldrv_SetBoundsRect( PHYSDEV dev, RECT *rect, UINT flags )
 581 {
 582     return DCB_RESET;
 583 }
 584
 585 static COLORREF nulldrv_SetDCBrushColor( PHYSDEV dev, COLORREF color )
 586 {
 587     return color;
 588 }
 589
 590 static COLORREF nulldrv_SetDCPenColor( PHYSDEV dev, COLORREF color )
 591 {
 592     return color;
 593 }
 594
 595 static void nulldrv_SetDeviceClipping( PHYSDEV dev, HRGN rgn )
 596 {
 597 }
 598
 599 static DWORD nulldrv_SetLayout( PHYSDEV dev, DWORD layout )
 600 {
 601     return layout;
 602 }
 603
 604 static BOOL nulldrv_SetDeviceGammaRamp( PHYSDEV dev, void *ramp )
 605 {
 606     SetLastError( ERROR_INVALID_PARAMETER );
 607     return FALSE;
 608 }
 609
 610 static DWORD nulldrv_SetMapperFlags( PHYSDEV dev, DWORD flags )
 611 {
 612     return flags;
 613 }
 614
 615 static COLORREF nulldrv_SetPixel( PHYSDEV dev, INT x, INT y, COLORREF color )
 616 {
 617     return color;
 618 }
 619
 620 static INT nulldrv_SetPolyFillMode( PHYSDEV dev, INT mode )
 621 {
 622     return mode;
 623 }
 624
 625 static INT nulldrv_SetROP2( PHYSDEV dev, INT rop )
 626 {
 627     return rop;
 628 }
 629
 630 static INT nulldrv_SetRelAbs( PHYSDEV dev, INT mode )
 631 {
 632     return mode;
 633 }
 634
 635 static INT nulldrv_SetStretchBltMode( PHYSDEV dev, INT mode )
 636 {
 637     return mode;
 638 }
 639
 640 static UINT nulldrv_SetTextAlign( PHYSDEV dev, UINT align )
 641 {
 642     return align;
 643 }
 644
 645 static INT nulldrv_SetTextCharacterExtra( PHYSDEV dev, INT extra )
 646 {
 647     return extra;
 648 }
 649
 650 static COLORREF nulldrv_SetTextColor( PHYSDEV dev, COLORREF color )
 651 {
 652     return color;
 653 }
 654
 655 static BOOL nulldrv_SetTextJustification( PHYSDEV dev, INT extra, INT breaks )
 656 {
 657     return TRUE;
 658 }
 659
 660 static INT nulldrv_StartDoc( PHYSDEV dev, const DOCINFOW *info )
 661 {
 662     return 0;
 663 }
 664
 665 static INT nulldrv_StartPage( PHYSDEV dev )
 666 {
 667     return 1;
 668 }
 669
 670 static BOOL nulldrv_UnrealizePalette( HPALETTE palette )
 671 {
 672     return FALSE;
 673 }
 674
 675 static struct opengl_funcs *nulldrv_wine_get_wgl_driver( PHYSDEV dev, UINT version )
 676 {
 677     return (void *)-1;
 678 }
 679
 680 const struct gdi_dc_funcs null_driver =
 681 {
 682     nulldrv_AbortDoc,                   /* pAbortDoc */
 683     nulldrv_AbortPath,                  /* pAbortPath */
 684     nulldrv_AlphaBlend,                 /* pAlphaBlend */
 685     nulldrv_AngleArc,                   /* pAngleArc */
 686     nulldrv_Arc,                        /* pArc */
 687     nulldrv_ArcTo,                      /* pArcTo */
 688     nulldrv_BeginPath,                  /* pBeginPath */
 689     nulldrv_BlendImage,                 /* pBlendImage */
 690     nulldrv_Chord,                      /* pChord */
 691     nulldrv_CloseFigure,                /* pCloseFigure */
 692     nulldrv_CreateCompatibleDC,         /* pCreateCompatibleDC */
 693     nulldrv_CreateDC,                   /* pCreateDC */
 694     nulldrv_DeleteDC,                   /* pDeleteDC */
 695     nulldrv_DeleteObject,               /* pDeleteObject */
 696     nulldrv_DeviceCapabilities,         /* pDeviceCapabilities */
 697     nulldrv_Ellipse,                    /* pEllipse */
 698     nulldrv_EndDoc,                     /* pEndDoc */
 699     nulldrv_EndPage,                    /* pEndPage */
 700     nulldrv_EndPath,                    /* pEndPath */
 701     nulldrv_EnumFonts,                  /* pEnumFonts */
 702     nulldrv_EnumICMProfiles,            /* pEnumICMProfiles */
 703     nulldrv_ExcludeClipRect,            /* pExcludeClipRect */
 704     nulldrv_ExtDeviceMode,              /* pExtDeviceMode */
 705     nulldrv_ExtEscape,                  /* pExtEscape */
 706     nulldrv_ExtFloodFill,               /* pExtFloodFill */
 707     nulldrv_ExtSelectClipRgn,           /* pExtSelectClipRgn */
 708     nulldrv_ExtTextOut,                 /* pExtTextOut */
 709     nulldrv_FillPath,                   /* pFillPath */
 710     nulldrv_FillRgn,                    /* pFillRgn */
 711     nulldrv_FlattenPath,                /* pFlattenPath */
 712     nulldrv_FontIsLinked,               /* pFontIsLinked */
 713     nulldrv_FrameRgn,                   /* pFrameRgn */
 714     nulldrv_GdiComment,                 /* pGdiComment */
 715     nulldrv_GdiRealizationInfo,         /* pGdiRealizationInfo */
 716     nulldrv_GetBoundsRect,              /* pGetBoundsRect */
 717     nulldrv_GetCharABCWidths,           /* pGetCharABCWidths */
 718     nulldrv_GetCharABCWidthsI,          /* pGetCharABCWidthsI */
 719     nulldrv_GetCharWidth,               /* pGetCharWidth */
 720     nulldrv_GetDeviceCaps,              /* pGetDeviceCaps */
 721     nulldrv_GetDeviceGammaRamp,         /* pGetDeviceGammaRamp */
 722     nulldrv_GetFontData,                /* pGetFontData */
 723     nulldrv_GetFontUnicodeRanges,       /* pGetFontUnicodeRanges */
 724     nulldrv_GetGlyphIndices,            /* pGetGlyphIndices */
 725     nulldrv_GetGlyphOutline,            /* pGetGlyphOutline */
 726     nulldrv_GetICMProfile,              /* pGetICMProfile */
 727     nulldrv_GetImage,                   /* pGetImage */
 728     nulldrv_GetKerningPairs,            /* pGetKerningPairs */
 729     nulldrv_GetNearestColor,            /* pGetNearestColor */
 730     nulldrv_GetOutlineTextMetrics,      /* pGetOutlineTextMetrics */
 731     nulldrv_GetPixel,                   /* pGetPixel */
 732     nulldrv_GetSystemPaletteEntries,    /* pGetSystemPaletteEntries */
 733     nulldrv_GetTextCharsetInfo,         /* pGetTextCharsetInfo */
 734     nulldrv_GetTextExtentExPoint,       /* pGetTextExtentExPoint */
 735     nulldrv_GetTextExtentExPointI,      /* pGetTextExtentExPointI */
 736     nulldrv_GetTextFace,                /* pGetTextFace */
 737     nulldrv_GetTextMetrics,             /* pGetTextMetrics */
 738     nulldrv_GradientFill,               /* pGradientFill */
 739     nulldrv_IntersectClipRect,          /* pIntersectClipRect */
 740     nulldrv_InvertRgn,                  /* pInvertRgn */
 741     nulldrv_LineTo,                     /* pLineTo */
 742     nulldrv_ModifyWorldTransform,       /* pModifyWorldTransform */
 743     nulldrv_MoveTo,                     /* pMoveTo */
 744     nulldrv_OffsetClipRgn,              /* pOffsetClipRgn */
 745     nulldrv_OffsetViewportOrgEx,        /* pOffsetViewportOrg */
 746     nulldrv_OffsetWindowOrgEx,          /* pOffsetWindowOrg */
 747     nulldrv_PaintRgn,                   /* pPaintRgn */
 748     nulldrv_PatBlt,                     /* pPatBlt */
 749     nulldrv_Pie,                        /* pPie */
 750     nulldrv_PolyBezier,                 /* pPolyBezier */
 751     nulldrv_PolyBezierTo,               /* pPolyBezierTo */
 752     nulldrv_PolyDraw,                   /* pPolyDraw */
 753     nulldrv_PolyPolygon,                /* pPolyPolygon */
 754     nulldrv_PolyPolyline,               /* pPolyPolyline */
 755     nulldrv_Polygon,                    /* pPolygon */
 756     nulldrv_Polyline,                   /* pPolyline */
 757     nulldrv_PolylineTo,                 /* pPolylineTo */
 758     nulldrv_PutImage,                   /* pPutImage */
 759     nulldrv_RealizeDefaultPalette,      /* pRealizeDefaultPalette */
 760     nulldrv_RealizePalette,             /* pRealizePalette */
 761     nulldrv_Rectangle,                  /* pRectangle */
 762     nulldrv_ResetDC,                    /* pResetDC */
 763     nulldrv_RestoreDC,                  /* pRestoreDC */
 764     nulldrv_RoundRect,                  /* pRoundRect */
 765     nulldrv_SaveDC,                     /* pSaveDC */
 766     nulldrv_ScaleViewportExtEx,         /* pScaleViewportExt */
 767     nulldrv_ScaleWindowExtEx,           /* pScaleWindowExt */
 768     nulldrv_SelectBitmap,               /* pSelectBitmap */
 769     nulldrv_SelectBrush,                /* pSelectBrush */
 770     nulldrv_SelectClipPath,             /* pSelectClipPath */
 771     nulldrv_SelectFont,                 /* pSelectFont */
 772     nulldrv_SelectPalette,              /* pSelectPalette */
 773     nulldrv_SelectPen,                  /* pSelectPen */
 774     nulldrv_SetArcDirection,            /* pSetArcDirection */
 775     nulldrv_SetBkColor,                 /* pSetBkColor */
 776     nulldrv_SetBkMode,                  /* pSetBkMode */
 777     nulldrv_SetBoundsRect,              /* pSetBoundsRect */
 778     nulldrv_SetDCBrushColor,            /* pSetDCBrushColor */
 779     nulldrv_SetDCPenColor,              /* pSetDCPenColor */
 780     nulldrv_SetDIBitsToDevice,          /* pSetDIBitsToDevice */
 781     nulldrv_SetDeviceClipping,          /* pSetDeviceClipping */
 782     nulldrv_SetDeviceGammaRamp,         /* pSetDeviceGammaRamp */
 783     nulldrv_SetLayout,                  /* pSetLayout */
 784     nulldrv_SetMapMode,                 /* pSetMapMode */
 785     nulldrv_SetMapperFlags,             /* pSetMapperFlags */
 786     nulldrv_SetPixel,                   /* pSetPixel */
 787     nulldrv_SetPolyFillMode,            /* pSetPolyFillMode */
 788     nulldrv_SetROP2,                    /* pSetROP2 */
 789     nulldrv_SetRelAbs,                  /* pSetRelAbs */
 790     nulldrv_SetStretchBltMode,          /* pSetStretchBltMode */
 791     nulldrv_SetTextAlign,               /* pSetTextAlign */
 792     nulldrv_SetTextCharacterExtra,      /* pSetTextCharacterExtra */
 793     nulldrv_SetTextColor,               /* pSetTextColor */
 794     nulldrv_SetTextJustification,       /* pSetTextJustification */
 795     nulldrv_SetViewportExtEx,           /* pSetViewportExt */
 796     nulldrv_SetViewportOrgEx,           /* pSetViewportOrg */
 797     nulldrv_SetWindowExtEx,             /* pSetWindowExt */
 798     nulldrv_SetWindowOrgEx,             /* pSetWindowOrg */
 799     nulldrv_SetWorldTransform,          /* pSetWorldTransform */
 800     nulldrv_StartDoc,                   /* pStartDoc */
 801     nulldrv_StartPage,                  /* pStartPage */
 802     nulldrv_StretchBlt,                 /* pStretchBlt */
 803     nulldrv_StretchDIBits,              /* pStretchDIBits */
 804     nulldrv_StrokeAndFillPath,          /* pStrokeAndFillPath */
 805     nulldrv_StrokePath,                 /* pStrokePath */
 806     nulldrv_UnrealizePalette,           /* pUnrealizePalette */
 807     nulldrv_WidenPath,                  /* pWidenPath */
 808     nulldrv_wine_get_wgl_driver,        /* wine_get_wgl_driver */
 809
 810     GDI_PRIORITY_NULL_DRV               /* priority */
 811 };
 812
 813
 814 /*****************************************************************************
 815  *      DRIVER_GetDriverName
 816  *
 817  */
 818 BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size )
 819 {
 820     static const WCHAR displayW[] = { 'd','i','s','p','l','a','y',0 };
 821     static const WCHAR devicesW[] = { 'd','e','v','i','c','e','s',0 };
 822     static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
 823     static const WCHAR empty_strW[] = { 0 };
 824     WCHAR *p;
 825
 826     /* display is a special case */
 827     if (!strcmpiW( device, displayW ) ||
 828         !strcmpiW( device, display1W ))
 829     {
 830         lstrcpynW( driver, displayW, size );
 831         return TRUE;
 832     }
 833
 834     size = GetProfileStringW(devicesW, device, empty_strW, driver, size);
 835     if(!size) {
 836         WARN("Unable to find %s in [devices] section of win.ini\n", debugstr_w(device));
 837         return FALSE;
 838     }
 839     p = strchrW(driver, ',');
 840     if(!p)
 841     {
 842         WARN("%s entry in [devices] section of win.ini is malformed.\n", debugstr_w(device));
 843         return FALSE;
 844     }
 845     *p = 0;
 846     TRACE("Found %s for %s\n", debugstr_w(driver), debugstr_w(device));
 847     return TRUE;
 848 }
 849
 850
 851 /***********************************************************************
 852  *           GdiConvertToDevmodeW    (GDI32.@)
 853  */
 854 DEVMODEW * WINAPI GdiConvertToDevmodeW(const DEVMODEA *dmA)
 855 {
 856     DEVMODEW *dmW;
 857     WORD dmW_size, dmA_size;
 858
 859     dmA_size = dmA->dmSize;
 860
 861     /* this is the minimal dmSize that XP accepts */
 862     if (dmA_size < FIELD_OFFSET(DEVMODEA, dmFields))
 863         return NULL;
 864
 865     if (dmA_size > sizeof(DEVMODEA))
 866         dmA_size = sizeof(DEVMODEA);
 867
 868     dmW_size = dmA_size + CCHDEVICENAME;
 869     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 870         dmW_size += CCHFORMNAME;
 871
 872     dmW = HeapAlloc(GetProcessHeap(), 0, dmW_size + dmA->dmDriverExtra);
 873     if (!dmW) return NULL;
 874
 875     MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmDeviceName, -1,
 876                                    dmW->dmDeviceName, CCHDEVICENAME);
 877     /* copy slightly more, to avoid long computations */
 878     memcpy(&dmW->dmSpecVersion, &dmA->dmSpecVersion, dmA_size - CCHDEVICENAME);
 879
 880     if (dmA_size >= FIELD_OFFSET(DEVMODEA, dmFormName) + CCHFORMNAME)
 881     {
 882         if (dmA->dmFields & DM_FORMNAME)
 883             MultiByteToWideChar(CP_ACP, 0, (const char*) dmA->dmFormName, -1,
 884                                        dmW->dmFormName, CCHFORMNAME);
 885         else
 886             dmW->dmFormName[0] = 0;
 887
 888         if (dmA_size > FIELD_OFFSET(DEVMODEA, dmLogPixels))
 889             memcpy(&dmW->dmLogPixels, &dmA->dmLogPixels, dmA_size - FIELD_OFFSET(DEVMODEA, dmLogPixels));
 890     }
 891
 892     if (dmA->dmDriverExtra)
 893         memcpy((char *)dmW + dmW_size, (const char *)dmA + dmA_size, dmA->dmDriverExtra);
 894
 895     dmW->dmSize = dmW_size;
 896
 897     return dmW;
 898 }
 899
 900
 901 /*****************************************************************************
 902  *      @ [GDI32.100]
 903  *
 904  * This should thunk to 16-bit and simply call the proc with the given args.
 905  */
 906 INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
 907                                  LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
 908 {
 909     FIXME("(%p, %p, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
 910     return -1;
 911 }
 912
 913 /*****************************************************************************
 914  *      @ [GDI32.101]
 915  *
 916  * This should load the correct driver for lpszDevice and calls this driver's
 917  * ExtDeviceModePropSheet proc.
 918  *
 919  * Note: The driver calls a callback routine for each property sheet page; these
 920  * pages are supposed to be filled into the structure pointed to by lpPropSheet.
 921  * The layout of this structure is:
 922  *
 923  * struct
 924  * {
 925  *   DWORD  nPages;
 926  *   DWORD  unknown;
 927  *   HPROPSHEETPAGE  pages[10];
 928  * };
 929  */
 930 INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
 931                                              LPCSTR lpszPort, LPVOID lpPropSheet )
 932 {
 933     FIXME("(%p, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
 934     return -1;
 935 }
 936
 937 /*****************************************************************************
 938  *      @ [GDI32.102]
 939  *
 940  * This should load the correct driver for lpszDevice and call this driver's
 941  * ExtDeviceMode proc.
 942  *
 943  * FIXME: convert ExtDeviceMode to unicode in the driver interface
 944  */
 945 INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
 946                                     LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
 947                                     LPSTR lpszPort, LPDEVMODEA lpdmInput,
 948                                     LPSTR lpszProfile, DWORD fwMode )
 949 {
 950     WCHAR deviceW[300];
 951     WCHAR bufW[300];
 952     char buf[300];
 953     HDC hdc;
 954     DC *dc;
 955     INT ret = -1;
 956
 957     TRACE("(%p, %p, %s, %s, %p, %s, %d)\n",
 958           hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
 959
 960     if (!lpszDevice) return -1;
 961     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
 962
 963     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
 964
 965     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
 966
 967     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
 968
 969     if ((dc = get_dc_ptr( hdc )))
 970     {
 971         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pExtDeviceMode );
 972         ret = physdev->funcs->pExtDeviceMode( buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
 973                                               lpdmInput, lpszProfile, fwMode );
 974         release_dc_ptr( dc );
 975     }
 976     DeleteDC( hdc );
 977     return ret;
 978 }
 979
 980 /****************************************************************************
 981  *      @ [GDI32.103]
 982  *
 983  * This should load the correct driver for lpszDevice and calls this driver's
 984  * AdvancedSetupDialog proc.
 985  */
 986 INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
 987                                           LPDEVMODEA devin, LPDEVMODEA devout )
 988 {
 989     TRACE("(%p, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
 990     return -1;
 991 }
 992
 993 /*****************************************************************************
 994  *      @ [GDI32.104]
 995  *
 996  * This should load the correct driver for lpszDevice and calls this driver's
 997  * DeviceCapabilities proc.
 998  *
 999  * FIXME: convert DeviceCapabilities to unicode in the driver interface
1000  */
1001 DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
1002                                            WORD fwCapability, LPSTR lpszOutput,
1003                                            LPDEVMODEA lpdm )
1004 {
1005     WCHAR deviceW[300];
1006     WCHAR bufW[300];
1007     char buf[300];
1008     HDC hdc;
1009     DC *dc;
1010     INT ret = -1;
1011
1012     TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
1013
1014     if (!lpszDevice) return -1;
1015     if (!MultiByteToWideChar(CP_ACP, 0, lpszDevice, -1, deviceW, 300)) return -1;
1016
1017     if(!DRIVER_GetDriverName( deviceW, bufW, 300 )) return -1;
1018
1019     if (!WideCharToMultiByte(CP_ACP, 0, bufW, -1, buf, 300, NULL, NULL)) return -1;
1020
1021     if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
1022
1023     if ((dc = get_dc_ptr( hdc )))
1024     {
1025         PHYSDEV physdev = GET_DC_PHYSDEV( dc, pDeviceCapabilities );
1026         ret = physdev->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
1027                                                    fwCapability, lpszOutput, lpdm );
1028         release_dc_ptr( dc );
1029     }
1030     DeleteDC( hdc );
1031     return ret;
1032 }
1033
1034
1035 /************************************************************************
1036  *             Escape  [GDI32.@]
1037  */
1038 INT WINAPI Escape( HDC hdc, INT escape, INT in_count, LPCSTR in_data, LPVOID out_data )
1039 {
1040     INT ret;
1041     POINT *pt;
1042
1043     switch (escape)
1044     {
1045     case ABORTDOC:
1046         return AbortDoc( hdc );
1047
1048     case ENDDOC:
1049         return EndDoc( hdc );
1050
1051     case GETPHYSPAGESIZE:
1052         pt = out_data;
1053         pt->x = GetDeviceCaps( hdc, PHYSICALWIDTH );
1054         pt->y = GetDeviceCaps( hdc, PHYSICALHEIGHT );
1055         return 1;
1056
1057     case GETPRINTINGOFFSET:
1058         pt = out_data;
1059         pt->x = GetDeviceCaps( hdc, PHYSICALOFFSETX );
1060         pt->y = GetDeviceCaps( hdc, PHYSICALOFFSETY );
1061         return 1;
1062
1063     case GETSCALINGFACTOR:
1064         pt = out_data;
1065         pt->x = GetDeviceCaps( hdc, SCALINGFACTORX );
1066         pt->y = GetDeviceCaps( hdc, SCALINGFACTORY );
1067         return 1;
1068
1069     case NEWFRAME:
1070         return EndPage( hdc );
1071
1072     case SETABORTPROC:
1073         return SetAbortProc( hdc, (ABORTPROC)in_data );
1074
1075     case STARTDOC:
1076         {
1077             DOCINFOA doc;
1078             char *name = NULL;
1079
1080             /* in_data may not be 0 terminated so we must copy it */
1081             if (in_data)
1082             {
1083                 name = HeapAlloc( GetProcessHeap(), 0, in_count+1 );
1084                 memcpy( name, in_data, in_count );
1085                 name[in_count] = 0;
1086             }
1087             /* out_data is actually a pointer to the DocInfo structure and used as
1088              * a second input parameter */
1089             if (out_data) doc = *(DOCINFOA *)out_data;
1090             else
1091             {
1092                 doc.cbSize = sizeof(doc);
1093                 doc.lpszOutput = NULL;
1094                 doc.lpszDatatype = NULL;
1095                 doc.fwType = 0;
1096             }
1097             doc.lpszDocName = name;
1098             ret = StartDocA( hdc, &doc );
1099             HeapFree( GetProcessHeap(), 0, name );
1100             if (ret > 0) ret = StartPage( hdc );
1101             return ret;
1102         }
1103
1104     case QUERYESCSUPPORT:
1105         {
1106             const INT *ptr = (const INT *)in_data;
1107             if (in_count < sizeof(INT)) return 0;
1108             switch(*ptr)
1109             {
1110             case ABORTDOC:
1111             case ENDDOC:
1112             case GETPHYSPAGESIZE:
1113             case GETPRINTINGOFFSET:
1114             case GETSCALINGFACTOR:
1115             case NEWFRAME:
1116             case QUERYESCSUPPORT:
1117             case SETABORTPROC:
1118             case STARTDOC:
1119                 return TRUE;
1120             }
1121             break;
1122         }
1123     }
1124
1125     /* if not handled internally, pass it to the driver */
1126     return ExtEscape( hdc, escape, in_count, in_data, 0, out_data );
1127 }
1128
1129
1130 /******************************************************************************
1131  *              ExtEscape       [GDI32.@]
1132  *
1133  * Access capabilities of a particular device that are not available through GDI.
1134  *
1135  * PARAMS
1136  *    hdc         [I] Handle to device context
1137  *    nEscape     [I] Escape function
1138  *    cbInput     [I] Number of bytes in input structure
1139  *    lpszInData  [I] Pointer to input structure
1140  *    cbOutput    [I] Number of bytes in output structure
1141  *    lpszOutData [O] Pointer to output structure
1142  *
1143  * RETURNS
1144  *    Success: >0
1145  *    Not implemented: 0
1146  *    Failure: <0
1147  */
1148 INT WINAPI ExtEscape( HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData,
1149                       INT cbOutput, LPSTR lpszOutData )
1150 {
1151     PHYSDEV physdev;
1152     INT ret;
1153     DC * dc = get_dc_ptr( hdc );
1154
1155     if (!dc) return 0;
1156     update_dc( dc );
1157     physdev = GET_DC_PHYSDEV( dc, pExtEscape );
1158     ret = physdev->funcs->pExtEscape( physdev, nEscape, cbInput, lpszInData, cbOutput, lpszOutData );
1159     release_dc_ptr( dc );
1160     return ret;
1161 }
1162
1163
1164 /*******************************************************************
1165  *      DrawEscape [GDI32.@]
1166  *
1167  *
1168  */
1169 INT WINAPI DrawEscape(HDC hdc, INT nEscape, INT cbInput, LPCSTR lpszInData)
1170 {
1171     FIXME("DrawEscape, stub\n");
1172     return 0;
1173 }
1174
1175 /*******************************************************************
1176  *      NamedEscape [GDI32.@]
1177  */
1178 INT WINAPI NamedEscape( HDC hdc, LPCWSTR pDriver, INT nEscape, INT cbInput, LPCSTR lpszInData,
1179                         INT cbOutput, LPSTR lpszOutData )
1180 {
1181     FIXME("(%p, %s, %d, %d, %p, %d, %p)\n",
1182           hdc, wine_dbgstr_w(pDriver), nEscape, cbInput, lpszInData, cbOutput,
1183           lpszOutData);
1184     return 0;
1185 }
1186
1187 /*******************************************************************
1188  *      DdQueryDisplaySettingsUniqueness [GDI32.@]
1189  *      GdiEntry13                       [GDI32.@]
1190  */
1191 ULONG WINAPI DdQueryDisplaySettingsUniqueness(VOID)
1192 {
1193     static int warn_once;
1194
1195     if (!warn_once++)
1196         FIXME("stub\n");
1197     return 0;
1198 }